Hello. I have a code that was running just fine. Then, I increased the size of my arrays largely and it sometimes doesn't compiles and I tried with some flags that compiled but crashed with errors I don't understand.
I had some arrays of size about 3000, that I changed to 22554 ( and also squared matrices of this size). I have only my main code and a module, in which I create most of my global variables.
I was originally compiling just with:
ifort -c global_param.f90; ifort -c dyn.f90; ifort global_param.o dyn.o -check bounds
And for that I got the error during compiling:
global_param.o: In function `global_param_mp_hamiltonian_': global_param.f90:(.text+0x145): relocation truncated to fit: R_X86_64_32S against symbol `global_param_mp_pot1_' defined in COMMON section in global_param.o global_param.f90:(.text+0x14e): relocation truncated to fit: R_X86_64_32S against symbol `global_param_mp_pot1_' defined in COMMON section in global_param.o global_param.f90:(.text+0x173): relocation truncated to fit: R_X86_64_32S against symbol `global_param_mp_pot1_' defined in COMMON section in global_param.o global_param.f90:(.text+0x1d9): relocation truncated to fit: R_X86_64_32S against symbol `global_param_mp_pot1_' defined in COMMON section in global_param.o global_param.f90:(.text+0x1e3): relocation truncated to fit: R_X86_64_32S against symbol `global_param_mp_pot1_' defined in COMMON section in global_param.o global_param.f90:(.text+0x212): relocation truncated to fit: R_X86_64_32S against symbol `global_param_mp_pot1_' defined in COMMON section in global_param.o global_param.f90:(.text+0x22c): relocation truncated to fit: R_X86_64_32S against symbol `global_param_mp_pot2_' defined in COMMON section in global_param.o global_param.f90:(.text+0x236): relocation truncated to fit: R_X86_64_32S against symbol `global_param_mp_pot2_' defined in COMMON section in global_param.o global_param.f90:(.text+0x25a): relocation truncated to fit: R_X86_64_32S against symbol `global_param_mp_pot2_' defined in COMMON section in global_param.o global_param.f90:(.text+0x2c0): relocation truncated to fit: R_X86_64_32S against symbol `global_param_mp_pot2_' defined in COMMON section in global_param.o global_param.f90:(.text+0x2ca): additional relocation overflows omitted from the output
The I searched and found out that this could be due to the size of my arrays, and that I should compile with the -fpic and -mcmodel flags. So, I tried:
ifort -c global_param.f90 -fpic -mcmodel=large ;ifort -c dyn.f90 -fpic -mcmodel=large ; ifort -fpic -mcmodel=large global_param.o dyn.o -check bounds
And then I simply got the error
Segmentation fault
I don't know what to do. Can someone please help me?
Many thanks in advance,
Cayo